The Ministry of Defence may mobilise reservists to operate alongside their regular counterparts for a particular operation. The reserve forces include the: Army Reserve; Royal Naval Reserve; Royal Marines Reserve and Reserve Air Forces.
An employer could be notified by a call-out notice that an employee who is a reservist is being mobilised. Employers are entitled to financial assistance to compensate them for financial loss as a result of the mobilisation of reservists for service in the armed forces.
Where the employer believes that the employee's absence would cause “serious harm” to the organisation, you may apply for a deferral, revocation or exemption from the call-out notice in relation to the employee.